From a7d832f28c3aca79a3f6575f7490d7dc7c9e4a23 Mon Sep 17 00:00:00 2001
From: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Date: Fri, 31 May 2019 17:24:26 +0900
Subject: [PATCH] iscsi: Correct iovec increment when data digest is enabled

iscsi_sgl_append_with_md had not increment _iscsi_sgl::iov
by appended count of iovecs. Hence if data digest is enabled,
data segment will be overwritten by data digest.

This patch fixes the bug.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ibcdacb883b2b97ad86cfc39a035c76264090401d
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/456451
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ziye Yang <ziye.yang@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
---
 lib/iscsi/iscsi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/iscsi/iscsi.c b/lib/iscsi/iscsi.c
index 4a1a49bdc..77abcf54d 100644
--- a/lib/iscsi/iscsi.c
+++ b/lib/iscsi/iscsi.c
@@ -638,6 +638,7 @@ _iscsi_sgl_append_with_md(struct _iscsi_sgl *s,
 		s->iov_offset = 0;
 		assert(s->iovcnt >= rc);
 		s->iovcnt -= rc;
+		s->iov += rc;
 
 		if (s->iovcnt == 0) {
 			return false;